Routine Maintenance: Detectors
Maintaining a thermal conductivity detector (TCD)
Released: March 2004 6850 Series II GC User Information page 186 of 256
7. Remove the gas fitting from the flow module.
8. Unscrew the manifold block fitting from the flow module.
9. Loosen the two screws securing each of the connector covers, and slide
the connector covers off.
10. Push the two tabs to release the ribbon cable connector and disconnect it.
11. Loosen the back screw, remove the two front screws, and pull out the flow
module from the lid.
12. Disconnect the TCD switching valve connector at the jumper.
To install the new TCD flow module
1. Connect the TCD switching valve connector.
2. Place the module in the lid.
3. Connect the ribbon cable connector.
4. Fasten the flow module to the lid using the three T–20 Torx screws.
5. Slide the connector covers into position and tighten the mounting screws.
6. Install the manifold block fitting and reconnect the gas fittings.
7. Reconnect the supply gases and turn them on. Reconnect the power cord.
8. Turn the GC on.
Slide covers off
Remove front screws
Gas fitting
To Next Page
Loading...
Need help?
General
